package edu.ycu.aladdin.common;

import java.lang.annotation.*;

/**
 * 指定参数可为空.
 *
 * @author <a href="mailto:wangruihuano@gmail.com">王瑞环</a>
 * @since 1.0 仅为标识作用
 */
@Target(ElementType.PARAMETER)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface NullAble {
}
